I know my baby is tired. I know she feels happier when she has napped, but how long do I keep going trying to get her to nap? Till the nap was supposed to be over, till she actually does sleep, till the next feed time, what? It has been an hour now and she's pretty upset at this point but I feel if I give up and play with her she isn't just going to be tired from not napping but also ratty from having screamed for so long too. She is in the cot in front of me frantically rubbing her eyes and screaming. She's only five months so I'm not too obsessed with self settling but she doesn't even settle being held by me - hence why I've put her down as it made no difference but was killing my back. Any thoughts?